SOLUTION: In the xy-coordinate plane, circle A is centered at the origin and has a radius of 5. For how many points on circle A is the sum of the x coordinate squared and the y coordinate sq
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Question 536928: In the xy-coordinate plane, circle A is centered at the origin and has a radius of 5. For how many points on circle A is the sum of the x coordinate squared and the y coordinate squared greater than 20?
a) 0
b) 4
c) 5
d) 8
e) more than 8
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
We want 
where 
is the set of all points on A. Hence, all of the points on circle A satisfy (infinitely many points) so the answer is e).
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